WaterSmart Certification Qualification Checklist

Transcription

1 Indoor Water Use Plumbing Fixtures High-Efficiency Gravity Flush Toilets Pressure Assist 1.1/1.6 gallons/flush Pressure Assist 1.1/1.6 gallons/flush Single Flush 1.28 gallons/flush Flushometer bowl and valve toilets 1.1/1.6 gallons/flush Urinals Urinals 0.125gpf Urinals 1.0/0.5 gallons/flush Zero-Water Urinals (Note: These urinal types require additional maintenance). Lavatory Faucets (Restrooms) Faucet aerators 0.5 gallons/minute (Optimum) Flow Restrictors 1.0 gallons/minute Lavatory Faucets (Locker Rooms) Flow Restrictors 0.5 gallons/minute Faucet aerators 1.0 gallons/minute Office Break Rooms / Kitchen Faucets Faucet aerators 1.5 gallons/minute or less Flow Restrictors 1.5 gallons/minute Shower heads 2.0 gallons/minute Food Service Equipment EBMUD recognizes that food prep may need higher flows. A restrictor is recommended on all faucets. Food Prep/Dish Washing Faucets Faucet aerators 1.5 gallons/minute Faucet aerators 2.2 gallons/minute Flow Restrictors 2.5 gallons/minute Hand Wash Faucets Faucet aerators 0.5 gallons/minute Flow Restrictors 1.0 gallons/minute High Efficiency Toilets using 1.28 gallons per flush (GPF) or less are recommended HET with dual flush are optimal. Businesses with existing 1.6 GPF toilets qualify for Watersmart program. Older toilets, defined as using more than 3.5 GPF, do not qualify for the program. Senate Bill 407 will mandate all 3.5gpf or more toilet(s) be replaced by Same as above. Retrofit of valve and fixture required if < 2-yr. payback. High Efficiency Urinals (HEU) using 0.125/0.5 gallons per flush (GPF) are recommended and are optimal. Businesses with existing 1.0 GPF urinals qualify for Watersmart program. Older urinals, defined as using more than 1.5 GPF, do not qualify for the program. Senate Bill 407 will mandate replacement of any urinal manufactured to use more than one gallon of water per flush by January 1, Lavatory/restrooms faucet can use aerators with 1.0gpm. 0.5gpm are the recommended flows for optimal water savings. Lavatory faucet for locker rooms can use aerators with 1.5gpm and still qualify for WaterSmart program. 0.5gpm & 1.0gpm are the recommended flows for optimal water savings. 1.5 GPM are the recommended flows for optimal water savings. Older unrestricted faucets or faucets using more than 2.0 GPM, do not qualify. 2.0 or less are optimal and reccommended for water savings. (Free showerheads available from EBMUD. May require applicant purchase where installation of hand-held, high-end, or more durable showerheads are needed). Aerators and flow restriction recommended where faucet is used for rinsing rather than filling. Hand wash ONLY faucets in food service can use aerators 1.0 GPM and still qualify for WaterSmart program. 0.5 GPM are the recommended flows for optimal water savings.

2 Food Service Equipment Pre-rinse spray nozzles 1.6 gallons/minute Pre-rinse spray nozzles 1.15 gallons/minute Dishwashers (Criteria by machine type) Under Counter High Temp 0.86 gal/rack Under Counter Low Temp 1.19 gal/rack Stationary Single Tank Door High Temp 0.89 gal/rack Stationary Single Tank Door Low Temp 1.18 gal/rack Single Tank Conveyor High Temp 0.70 gal/rack Single Tank Conveyor Low Temp 0.79 gal/rack Multiple Tank Conveyor High Temp 0.54 gal/rack Multiple Tank Conveyor Low Temp 0.54 gal/rack Ice Machines Air Cooled Only Air-cooled nugget and flake ice machines meets criteria. (Cubed ice machine criteria by equipment type follows). Ice Making Head 20 gal/100 lbs ice. Remote Condensing Unit (with or without remote compressor) 20 gal/100 lbs ice. Self Contained Unit 25 gal/100 lbs ice. Steamers Self-contained, boilerless with (with no water supply connection). Refrigeration Condenser cooling using air-cooled or closed-loop system. No single-pass cooling. Laundry Equipment Commercial Clothes Washers 5.5 gallons per cubic foot of laundry (WF). WFWater Factor (number of gallons needed for each cubic foot of laundry). A lower number indicates lower consumption and more efficient use of water. 2.0 cubic feet of laundry per kwh of electricity (MEF) MEFModified Energy Factor, measures energy consumption of the total laundry cycle (washing and drying). It indicates how many cubic feet of laundry can be washed and dried with one kwh of electricity; the higher the number, the greater the efficiency. 1.6gpm Pre-rinse nozzles available free from EBMUD. EBMUD recommends a pre-rinse spray valve with a flow rate of 1.15 gpm or less. EBMUD offers a $50 rebate. Only end nozzle is rebated. Entire apparatus will not be rebated. Retrofit required if < 2-yr. payback. Water usage rates are based on the product specification for ENERGY STAR qualified commercial dishwashers. (Note: Commercial dishwashers that have earned the ENERGY STAR are approximately 40 percent more energy efficient and 40 percent more water efficient than standard models). Exceptions may be made for water-cooled ice machines serving a closed loop chiller system and will be evaluated on a case-bycase basis. Retrofit required if < 2-yr. payback. Water usage Exceptions may be made for water-cooled ice ENERGY STAR qualified commercial ice machines. Retrofit required if < 2-yr. payback Retrofit required if < 2-yr. payback Retrofit required if < 2-yr. payback. Water and energy usage criteria correspond with Consortium for Energy Efficiency listing of Tier 3 products. Rebates available for qualifying products per current EBMUD List of Qualifying Commercial Clothes Washers for models listed as Tier 3 only.

3 Wash Down Hose-end use Automatic shutoff nozzles and/or high-pressure, lowvolume nozzles. Equipment and floor cleaning High-pressure, and/or low-volume washing equipment. Water Brooms using 2.10 gallons per minute (gpm). Pressurize air cleaning Faucet aerators 0.5 gallons/minute (Optimum). Flow Restrictors 1.0 gallons/minute. Cooling Cooling towers and evaporative condensers Minimum 8 cycles of concentration. Cooling tower conductivity controller System to time and regulate cooling tower bleed water. Install a conductivity controller to automatically control blowdown Cooling tower metering of both make-up and blow-down lines for towers with nominal rating of 250 tons of cooling capacity. Swamp cooler Maintenance schedule. Drain and clean regularly. Process Water Use Flow Reduction and Reuse Process Water Use Metering Measure flow to individual equipment and processes within a facility and having estimated usage > 5,000 gallons per day. Flow restriction device at hose bib required where nozzles are removed from hose end. Retrofit required if < 2-yr. payback. Water Brooms meet criteria for floor cleaning. The spray area of a water broom is 21, the maximum allowable gallon per minute consumption can be no more than 2.10 GPM Payback only where air is a feasible substitute for water. Cycles of concentration will be assessed by measuring conductivity of make-up and bleed water. Float valves must be routinely checked and the equipment operational and free of leaks. Retrofit required if < 2-yr. payback calculated using savings estimates derived from potential for increasing cycles of concentration. Internal metering of flows are needed to meet consumption monitoring requirement of significant uses within a facility. Swamp coolers are reccommended most often used in areas where daytime temperatures frequently exceed 100 F. Evaporative coolers continually use water. In areas with limited water supplies, water-use impact of adding an evaporative cooler needs to be considered. Retrofit required only where water saving potential and costs can be reliably estimated and for measure(s) with < 2-year simple payback period. Internal metering of flows is needed to meet consumption monitoring requirement of significant uses within a facility.

4 Outdoor Water Use Irrigation Hardware Smart Controller(s) self-adjusting, weather-based model(s). Standard Controllers Sprinklers and spray heads nozzle No sprinklers and spray heads in areas 8 feet wide. Turf Area Sprinklers head-to-head spacing self-adjusting, weather-based model(s) Sprinkler and spray head check valves To prevent low-head drainage. Sprinkler and spray head pressure regulation self-adjusting, weather-based model(s) Landscape Design and Maintenance Turfgrass Area Turfgrass in Medians and Parkway Strips Hydrozoned Plantings Low-Water-Use-Plantings Seasonal Irrigation Schedule Irrigation Station Mapping No irrigation of large mature shrubs or trees for more than 5,000 square feet of irrigated area. Central control systems and stand alone units (on-site sensor and off-site signal types qualify). May require replacement of conventional controllers. Programming must not exceed peak irrigation season water budget. Maintenance personnel and schedule for performing seasonal programming adjustments program must be in place. All spray heads serving an area must be of compatible type and have matched precipitation flow rates. Convert heads to drip or bubblers with low flow rates required where overspray and significant run-off are present. Installation of additional heads and/or relocation of heads required where measured distribution uniformity is < 60%. Factory installed check valve specified if the elevation difference within the zone exceeds 12 inches. Factory installed pressure regulating devises specified if manufacturers recommended pressure at the nozzle is exceeded. No turf area on slope steeper that 1 to 10 degrees No turfgrass with any dimensions less than eight feet or subsurface drip irrigation of turf grass with any dimension less than eight feet. Plants served by an irrigation valve have similar water requirements. Conversion from high-water-use to low-water-use plantings may be required to achieve appropriate hydrozoning. Unless site is equipped with a WaterSmart Controller adjust controller to meet the water needs of the plant material as the season changes. Display diagram of irrigation zones by station, irrigation hardware type (ex: spray, rotor, drip, subsurface drip), and plant type (Ex: lawn, shrub, annuals). where established plants can thrive with no supplemental irrigation.

5 Other Outdoor Uses Vehicle Washing Reduce overall water use wherever possible by on-site recycling. Use non-potable water sources for make-up water where available. Water efficiency benchmark is to use no more than 40 gallons of make-up water per vehicle (except for buses and larger vehicles). Where alternate non-potable water sources of suitable quality are available, such as municipal reclaimed water, these water sources should be utilzed to reduce the demand on potable water resources. Pools and Spas Pavement Cleaning On-site reuse of wash water and wastewater pre-treatment or off-site vehicle washing at facility with reuse and pretreatment systems. An additional area for water conservation is the towel and chamois washers used at many facilities offering wipe-down service after the car is washed and rinsed. The wash bin is often operated under continous flow of water with an overflow drain allowing thousands of gallons of water to be wasted every day. All such washers should include a high level shutoff to stop water flow before water levels reach the overflow drain, or include a metered fill valve to shut off the water when unattended. Pool covers recommended. No leakage and efficient filter backwash water usage. If heated, reduce your pool and spa water temperature to save water and energy costs. Warmer water evaporates more quickly. Manually clean your filter. A more thorough job is done and uses less water. The average backwash uses between 250 to 1,000 gallons (.95 m3 to 3.78 m3) of water -- without completely cleaning the filter. When the pool is filling, be sure to keep an eye on the water level. Forgetting to shut off fill water can make for a costly waste of water. Common locations for leaks are where the pool and pipes are joined, at separations along the pool top, in the water supply and return lines to the filtration system, and in the liner, sidewalls and floor of the pool itself. Leaks are also found around the pump seals and o-rings. Installing a water meter on the pool makeup line is the most effective way of monitoring water use and detecting leaks. Sweep outside area with brooms, sweepers or if necessary a water broom. No cleaning with hoses and hose-end nozzles except where required for sanitation purposes. Revised June 2016